Callahan is an Irish surname. Those bearing it include:
John H. Callahan, Civil War soldier and Medal of Honor recipient
John Patrick Callahan, United States Army
Ben Callahan, baseball player
Bill Callahan (football coach), American football coach
Gerry Callahan, sports writer
Henry Callahan, ultimate (frisbee) player
Joe Callahan, American football player
Nixey Callahan, baseball player and manager
Ryan Callahan, hockey player
Viviana Callahan Vargas (b. 1980), Chilean ski mountaineer
Bob Callahan, former member of the Legislative Assembly of Ontario
Deb Callahan, former president of the League of Conservation Voters
Dennis Callahan, ran in the 2006 Maryland county executive elections
Donald A. Callahan, 1938 Republican nominee for the U.S. Senate seat in Idaho
Ed Callahan, former Chairman of the National Credit Union Administration (NCUA)
James Yancy Callahan, former Delegate from the Oklahoma Territory to the U.S. House of Representatives
John B. Callahan, mayor of Bethlehem, Pennsylvania
John J. Callahan, former Assistant Secretary for Management & Budget at U.S. Department of Health and Human Services, former interim director of Social Security Administration
Laura Callahan, former senior director at the U.S. Department of Homeland Security
Sonny Callahan, former member of the U.S. House of Representatives for Mobile, Alabama
Victor Callahan, current Missouri State Senator
Bill Callahan (musician), American singer-songwriter
Sam Callahan, English singer
Bill Callahan (producer), producer and writer of Scrubs
John Callahan (actor), actor in All My Children
Noel Callahan, actor in Romeo!
Dennis Callahan, choreographer
Mars Callahan, actor, director, producer and writer
E.J.Callahan, Actor, known for his roles in Wild Wild West (1999) and Friends
Americus Callahan, inventor
Consuelo MarĂa Callahan, judge
Daniel Callahan, philosopher
David Callahan, writer
Gene Callahan (disambiguation)
Harry Callahan (photographer)
John Callahan (disambiguation)
John Ross Callahan, dental researcher
Kenneth Callahan, artist
North Callahan, historian
Rob Callahan, writer
William P. Callahan, Roman Catholic bishop
Callahan (surname) Wikipedia (Text) CC BY-SA